CN110295507A - Stalk extracts fibre technology - Google Patents
Stalk extracts fibre technology Download PDFInfo
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- CN110295507A CN110295507A CN201910489379.XA CN201910489379A CN110295507A CN 110295507 A CN110295507 A CN 110295507A CN 201910489379 A CN201910489379 A CN 201910489379A CN 110295507 A CN110295507 A CN 110295507A
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- Prior art keywords
- fiber
- blade
- stalk
- fibre technology
- water
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
- D21B1/061—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods using cutting devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of stalks to extract fibre technology, includes the following steps: step 1, feeding: by straw compression and exporting；Cutting: step 2 carries out continuous shear stress to compressed stalk and forms blade；Step 3, separation: blade, which is broken up, which filters the impurity in blade, comes；Sub-wire removal of impurities: step 4 carries out strong stirring evacuation sub-wire blade into the water and forms fiber；Depth cleaning: fiber after step 4 is carried out strong stirring, and mixing direction is contrary in step 4 by step 5 into the water；Dehydration: step 6 is carried out dehydrating the fiber after step 5；Step 7 heats abrasive material: will carry out abrasive material after fiber-heated to 90-95 DEG C after step 6 by the way of continuous feed and forms fiber；Step 8 disappears latent: by the stirring into the water after step 7, control fibre concentration is 4%-5%, stirs 40-60min, 60-70 DEG C of temperature；Step 9, screening concentration.The technique can improving production efficiency and extraction fiber quality.
Description
Technical field
The present invention relates to stalk process field, in particular to stalk extracts fibre technology.
Background technique
China's agricultural crop straw annual output is up to more than 600,000,000 tons, wherein collectable about 4.5 hundred million tons, but comprehensive utilization ratio
Less than 10%, existing rural area mostly uses the mode of burning to handle stalk, pollutes the environment.The comprehensive benefit of agricultural crop straw
With there is many practical techniques both at home and abroad.Its purposes can substantially be divided into three classes: being used as the raw material of industry (being mainly used for papermaking), use
Make livestock breeding feed, be used as fuel or biomass energy.It is mainly chemical extraction fiber, traditional chemistry that stalk, which extracts fiber, at present
Extraction fibre method is cooking process, and it is the main of composition agricultural crop straw that principle, which is due to lignin, cellulose and hemicellulose,
Skeleton, lignin are to be present in intercellular main matter, it makes cell mutually bond and consolidate.Method using boiling is to make
Chemical reaction, which occurs, for lignin and boiling chemicals in raw material makes lignin crack and dissolve out, to destroy interfibrous solid
Knot.But cooking process extracts fiber and will form papermaking wastewater (alkaline cooking formation black liquor, the sulfite cooking for being difficult to administer
Will form red slurry), serious pollution is caused to environment.
The patent of Publication No. CN109235096A discloses a kind of process of purely mechanic slurrying of stalk papermaking, suddenly such as
Under: enter six roller dedusters after whole stalk is cut into segment by chaffcutter, into No.1 high inclination angle conveyer stalk
It is transported in limitation buffer, into No. two high inclination angle conveyers, stalk is sent into drum-type grass washing machine and is cleaned again and mistake
Sundries is filtered, into waterpower grass chopper, after being pumped into inclined helix dehydrator dehydration by blade, entrance is Compulsory feeder used, crushing straw
Rub mill with the hands repeatedly through rotor inside thread rolling machine；From tiny stalk that thread rolling machine has cured out warp it is dense be pumped into material storage container or
In tank, certain time is impregnated, so far reaches theoretical slurrying requirement, subsequently into conventional pulping process, this pure machine of rice wheat straw waste
Tool slurrying is completed.
This mechanical heat for only relying on thread rolling machine stranding mill generation softens lignin, by the mode of fiber separation, effect
Rate is low, of poor quality.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of stalk extraction fibre technology, promoted
Production efficiency and extraction fiber quality.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of stalk extracts fiber work
Skill includes the following steps:
Feeding: step 1 by straw compression and exports；
Cutting: step 2 carries out continuous shear stress to compressed stalk and forms blade；
Step 3, separation: blade, which is broken up, which filters the impurity in blade, comes；
Sub-wire removal of impurities: step 4 carries out strong stirring evacuation sub-wire blade into the water and forms fiber；
Depth cleaning: fiber after step 4 is carried out strong stirring, and mixing direction and step by step 5 into the water
It is contrary in four；
Dehydration: step 6 is carried out dehydrating the fiber after step 5；
Step 7 is heated abrasive material: will be carried out after fiber-heated to 90-95 DEG C after step 6 by the way of continuous feed
Abrasive material forms fiber；
Step 8 disappears latent: by the stirring into the water after step 7, control fibre concentration is 4%-5%, stirs 50min, temperature
65 DEG C of degree；
Step 9, screening concentration.
This programme before regrinding material by being preheated, so that the lignin in stalk softens, is improved fiber quality, is made material
Fibrillating exposes a certain amount of hydroxyl, improves fibrous binding force, reduces manufactured goods hair and powder dropping, improves quality；It reduces into
This.
By the preliminary removal of impurities of step 3, the sub-wire removal of impurities of step 4 and the depth of step 5 clearly guarantee fiber
Cleanliness.
When high consistency refining, since the effect of high-frequency impulse and thermal energy inputs, and the rubbing effect of roll flute, make fiber very
The kink that bends under the action of high thermal stress and mechanical stress acts on, and fiber will make fiber after supercooling after mill
It is fixed on it and is bent kinked condition, the fiber ground is made to follow the string, influence to starch paper intensity.Disappear latent so that moistening by fibrous absorbent
It is swollen, the fiber stretch of distortion and spooling is come, so that the quality of stable fibers, improves the intensity of fiber.
Further, in step 6 by the way of screw extrusion dehydration.
On the one hand the mode of screw extrusion dehydration can play dehydrating effect, prepare for subsequent abrasive material, squeeze simultaneously
Mode make fiber keep the fibre density that is relatively close to, and fibre density is higher, and concentration is higher when fiber, as fruit fiber is dense
Low, washiness is spent, fiber temperature can reduce, and lead to fiber heavy fragmentation, and fiber quality not can guarantee；Due to fibre density
Height, continuous uniform when feeding, will not block feed inlet.
Further, the separation process of step 3 uses six roller goat's horn dedusters.
The blade entered between roller and sieve plate is sufficiently pushed aside and is broken up under the drive of motor by six big rollers of goat's horn, is mixed
Enter and the impurity such as the silt, not fibrous wheat, leaf, the fringe that are adhered on blade are separated by sieve plate.
Further, step 7 is repeated as many times.
It is more preferable by the way that the fiber quality that heating abrasive material is formed is repeated several times.
Further, step 2 and step 3 while, dust was discharged by the way of exhausting.
Dust will affect working environment and meeting blade cleanliness, convenient and efficient using exhausting mode outlet.
Further, in step 4 by the way of discontinuously feeding.
The mode discontinuously fed makes the amount stirred every time control in a certain range, stirs more abundant.
Further, the length control of blade is 10-15mm in step 2.
Material size is stably controlled within the scope of 10-15mm, is convenient for subsequent processing, too long to be not easy subsequent processing, too short
Processing efficiency is low.
In conclusion the invention has the following advantages: the present invention can effectively promote fiber quality, save the cost.
Detailed description of the invention
Fig. 1 is the equipment use flow diagram of embodiment.
Specific embodiment
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
A kind of stalk extraction fibre technology, such as Fig. 1 include the following steps:
Feeding: wheat straw is continuously packed into the belt conveyor run to chaffcutter direction, width 650mm, operation speed by step 1
Wheat straw is transported to feeder matched with chaffcutter by degree, 0.3-1.5m/s, belt conveyor, and feeder is equipped with three stage compression roller
Fluffy wheat straw is compressed, compressing roller has material toggling tooth, continuously compresses wheat straw and dials in chaffcutter.
Step 2, cutting: chaffcutter has three pieces fly cutter and a piece of bed plate, yield 2-3t/h, and roll bar needs 8-16 small
Shi Genghuan is primary, and bed plate needs replacement in 72-96 hours primary, and the blade changed need to be ground cutting edge again and keep sharp；In motor
Drive under be mounted in the fly cutter rotating operation on beater roll, shear action, the pressure that material toggling roller is sent occurs with fixed bed plate
At the blade of 30-50mm, blade qualification rate will reach 85% or more, otherwise need to change fly cutter contracting wheat straw continuous shear stress.
Step 3, separation: the blade cut is continuously introduced into six roller goat's horn dedusters, deduster under the stirring of beater roll
It is that sieve pore is around roller there are six the big roller that the rotation of the goat's horn type stirrer gear of many 16 × 120mm of φ or so is welded on surface
The round sieve plate of φ 8mm or so, six big rollers of goat's horn are under the drive of motor, and by entering, the blade between roller and sieve plate is abundant
It pushes aside and breaks up, be mixed into and be adhered to the impurity such as the silt on blade, not fibrous wheat, leaf, fringe and be separated by sieve plate
Come.Under the action of chaffcutter and six roller goat's horn dedusters, it can generate to a large amount of dusts, in chaffcutter and six roller goat's horn dedusters
Top be equipped with dust excluding hood, the air containing a large amount of dust is extracted out by blower, outdoor dirt pocket is drained into, passes through atomization spray
Water drenching is by the ash fall in dirty air.
Step 4, sub-wire removal of impurities: the blade come out from six roller goat's horn dedusters falls into drag conveyor, on drag conveyor
With scraper plate, material is slid when angled conveyor can be prevented larger, drag conveyor width 650mm, the speed of service, 0.3-1.5m/
The eminence in s, Xiang Shuili grass washing machine direction conveys, and blade is packed into waterpower grass washing machine, width 650mm, the speed of service, 0.5-
1.7m/s.The speed of service of waterpower grass washing machine is 0.2m/s faster than the drag conveyor speed of service always, to be formed similar interrupted
Material is sent into the state of waterpower grass washing machine.Blade enters waterpower grass washing machine, and fibre concentration 10% or so, waterpower grass washing machine has
The strength auger type blender of upper transmission evacuates sub-wire blade by strong stirring, will be careless by the power friction between blade
The silt of on piece is sufficiently separated with blade, and bulk impurity falls into sand collecting tank discharge, and i.e. discharge bulk impurity evacuates sub-wire again in this way
It is great to follow-up process effect also to moisten the basic wash clean of blade the fiber that risen for blade.
Depth cleaning: step 5 is opened blade pump, the fiber after step 4 is pumped into adverse current grass washing machine, thoroughly
By fiber wash clean, sediment interval is discharged.Adverse current grass washing machine and waterpower grass washing machine mixing direction are opposite.
Dehydration: step 6 is carried out dehydrating the fiber after step 5 using screw extrusion dewaterer；
Step 7 is heated abrasive material: will be carried out after fiber-heated to 90-95 DEG C after step 6 using heating type screw conveyor
Fiber is formed using highly concentrated material grinder abrasive material；Step 7 is repeated four times.
Step 8 disappears latent: being put into eliminating potential pool after step 7 being stirred, control fibre concentration is 4% -5%, is stirred
Mix 40-60min, 60-70 DEG C of temperature；
Step 9, screening concentration: fiber is sent into pressurized screen by stock pump, and under the action of pressurized screen rotor, fiber is dispersed throughout,
Tiny heavy seeds therein under the action of the centrifugal force, into the heavy slag ladle for being located at lower part, periodically discharge, heavy seeds do not enter screening
Area, prevents its abrasion to equipment body, and good slurry manages out by screen slot slurry of getting married and start a new life, and the faulty fiber for not passing through screen slot is arranged
Out, into slurry concentration 1.2-2%, screen slot size 0.35mm, the pole adapted power 30kw/4, cylinder is stainless steel 304/plate thickness 8mm, sieve
Rousing is Bar strip type, material 304, the wide 2.5mm of rod, aperture opening ratio 4%, about 35 ° of ripple angle, plating hard chromium on surface, and layers of chrome thickness
0.3mm.The wide rotary blade of stainless steel.
The acceptable fiber come out from pressurized screen enters inclined wire thickener, fibre concentration 6-8%, unpowered, in the effect of gravity
The lower a large amount of sewage containing reaction leachable are washed to be filtered out, and is washed the waste water filtered out and is entered reuse pool and is followed
Ring uses.
The fiber of inclined wire thickener falls into double net material washing machines, according to product requirement, can carry out further washing extruding herein
To 30% or more concentration, into formation system.
Claims (7)
1. a kind of stalk extracts fibre technology, characterized in that include the following steps:
Feeding: step 1 by straw compression and exports；
Cutting: step 2 carries out continuous shear stress to compressed stalk and forms blade；
Step 3, separation: blade, which is broken up, which filters the impurity in blade, comes；
Sub-wire removal of impurities: step 4 carries out strong stirring evacuation sub-wire blade into the water and forms fiber；
Depth cleaning: fiber after step 4 is carried out strong stirring, and mixing direction and step by step 5 into the water
It is contrary in four；
Dehydration: step 6 is carried out dehydrating the fiber after step 5；
Step 7 is heated abrasive material: will be carried out after fiber-heated to 90-95 DEG C after step 6 by the way of continuous feed
Abrasive material forms fiber；
Step 8 disappears latent: by the stirring into the water after step 7, controlling fibre concentration is 4% -5%, stirs 40-
60min, 60-70 DEG C of temperature；
Step 9, screening concentration.
2. stalk according to claim 1 extracts fibre technology, it is characterized in that: using screw extrusion dehydration in step 6
Mode.
3. stalk according to claim 1 extracts fibre technology, it is characterized in that: the separation process of step 3 uses six roller sheep
Angle deduster.
4. stalk according to claim 1 extracts fibre technology, it is characterized in that: step 7 is repeated as many times.
5. stalk according to claim 1 extracts fibre technology, it is characterized in that: using pumping while step 2 and step 3
Dust is discharged the mode of wind.
6. stalk according to claim 1 extracts fibre technology, it is characterized in that: using the side discontinuously fed in step 4
Formula.
7. stalk according to claim 1 extracts fibre technology, it is characterized in that: the length control of blade is in step 2
10-15mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489379.XA CN110295507A (en) | 2019-06-06 | 2019-06-06 | Stalk extracts fibre technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489379.XA CN110295507A (en) | 2019-06-06 | 2019-06-06 | Stalk extracts fibre technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110295507A true CN110295507A (en) | 2019-10-01 |
Family
ID=68027597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910489379.XA Pending CN110295507A (en) | 2019-06-06 | 2019-06-06 | Stalk extracts fibre technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110295507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977726A (en) * | 2021-01-08 | 2022-01-28 | 北京鑫泽清源植物秸秆技术有限公司 | Box type bearing structure type straw fibered agricultural mechanical equipment |
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|---|---|---|---|---|
| WO2005064076A1 (en) * | 2003-12-25 | 2005-07-14 | Xiuquan Mei | Closed cycle zero discharge oxidizing pulping process |
| CN101387086A (en) * | 2007-09-13 | 2009-03-18 | 吴解生 | Non-pollution pulping technique by chemical-mechanical method |
| CN102230285A (en) * | 2011-06-14 | 2011-11-02 | 李刚荣 | Pulping system and pulping method for environment-friendly mechanical pulp and chemical mechanical pulp of non-woody crops |
| CN108589371A (en) * | 2017-06-22 | 2018-09-28 | 北京华浩荣创科技有限公司 | A kind of natural color pulp and its preparation process and application |
| CN109208365A (en) * | 2018-10-22 | 2019-01-15 | 北京华浩荣创科技有限公司 | A kind of pulp production plant, pulping process and paper pulp manufacturing technique |
-
2019
- 2019-06-06 CN CN201910489379.XA patent/CN110295507A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005064076A1 (en) * | 2003-12-25 | 2005-07-14 | Xiuquan Mei | Closed cycle zero discharge oxidizing pulping process |
| CN101387086A (en) * | 2007-09-13 | 2009-03-18 | 吴解生 | Non-pollution pulping technique by chemical-mechanical method |
| CN102230285A (en) * | 2011-06-14 | 2011-11-02 | 李刚荣 | Pulping system and pulping method for environment-friendly mechanical pulp and chemical mechanical pulp of non-woody crops |
| CN108589371A (en) * | 2017-06-22 | 2018-09-28 | 北京华浩荣创科技有限公司 | A kind of natural color pulp and its preparation process and application |
| CN109208365A (en) * | 2018-10-22 | 2019-01-15 | 北京华浩荣创科技有限公司 | A kind of pulp production plant, pulping process and paper pulp manufacturing technique |
Non-Patent Citations (1)
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|---|
| 李文龙: "一种新的麦草半化学浆生产工艺", 《中国造纸》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977726A (en) * | 2021-01-08 | 2022-01-28 | 北京鑫泽清源植物秸秆技术有限公司 | Box type bearing structure type straw fibered agricultural mechanical equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191001 |
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| RJ01 | Rejection of invention patent application after publication |